Milling-machine head



Sept. 25 W23.

H. A..STEWART MILLING MACHINE HEAD File 1360- 16. 1 922 2 Sheets-Sheet 1 J'Zawari WITNESSM AITORNEY mmag fiept. .25 1923.

' I H. A. STEWART MILLING MACHINE HEAD Filed Dec. 16, 1922 2 Sheets-Sheet 2 Ki m m 1Z4. d'awar? INVENTOR I WITNESSQIQ I ATTORNEY 1 in machine head constituting Patented Sept. 25. 1923.

HENRY A: STEWAR or HIGHLAND Penn-MICHIGAN;

t a-in Mannie-MA HINE HEAD. I

re licate-med December 16, 132a Serial no, state.

To'dZZ whom it mag coacemi Be it known that'l, I-IENRY1A.SLEWAR'I:7

State'of Michigan, have invented new and useful Improvements in Milling-Machine;

Heads 'of which the following is a specification;

One object of my said invention is'the 1 vision'of a milling machine head possessed of the capacity of boring taper holes Anotherobjectof the invention is the provisionof the capacityindicated and adapted in addition to; do the work of an-ordinary 'milling machine head. I 1 R In accordance wi extreme {angle of the holes'will be determined by the size' of the essential elements ure 1 looking downwardly.

n'aled in the support l is; ashaft 2 towhich I I I 'ralsed, the tool holder '31 will be positioned Figure 4 'is'a Vertical cross-section taken in the plane indicated by -theline 4-4 of Figure 1, looking towardthe right. I

Figure 5 is an enlarged fragmentary-sec'-- tion taken in the plane indicated by the line 5- 5 of Figure land showing the means for pivotally' connecting the angle governor of the device in-the upper rotary tubular mereber' of the improvement." I

Similar numerals of' reference the drawings."

Among other elements my improvement comprises an appropriate 'supportll Joure is fixed a spur gear 3 and a bevel gear ia. the bevel gear bemg meshed with a' corresponding gear 5 on a drive shaft '6. Also journaled in the support 1 isa feed'screw 7 to which is keyed a bevel gear 8. This bevel gear 8 is meshed with a corresponding gear- 9 on a shaft. 10 which is shown as equipped with a hand wheel 11 for manual controla citizen of the United States, residing at, Highland Park, in the county of VVayne'and h my invention the depth to which holes may be bored and the l the foregoing, the

the mill- V I I designate corresponding parts in all: of the views of.

though it may, when deemed desirable be connected w th automatlc feed means, which latter is not of my nvention and isth'cre .fore not illustrated. E iot-able vertically "on that is rotatable in.thesupport lby virtue of a gear; 16 with which itis equipped being [meshed vwith the beforementioned spur gear 3. The said tubular member is'provided with'an upper flaredbor'e 17, and appropri- EIEII I ately fixed on the'tubular member '15 is a' frame 18, Figures, 1 and 2 in which is. mounted anad ustmg screw 19. I with the screw 19 and appropriately gu ded 'in the frame 18 are nuts 20, and carried by the said nuts-.20 are clamp heads 21." The said clamp heads '21 are disposedat opposite Engaged sides of the angle governor22which con ti;

tutes an important elementof my improve ment. The said anglegovern'or22 is pivoted at 23' in the tubular member 15,"; Figures" 1* and '5, a nd is prov ded with a bore 2etand a slot'25.- In virtue of'the-screwlf), nuts 20' 1 and clamp heads -21Qit will' be manifest that the angle governor22 maybe expeditiously and easily disposed and fixed at various anl e of inclination. Keyedat 26 to the'tub r lar memberif; so as to turn'wlth-said tubular member 15 and becapable of 'endwise rec- I lar member 27 on which is a circumferential the tubular member 27; is a holder-31 for an appropriate tool 32, and on the saidholdertilinear movement thereonis aflse'condftubwfi 31 is a shank 33 which extendsjthrougha'ndf 4 T is movable in the slot 'of'theainglegovernor and is provided" with a head 34 "dis -i 1 governor.

' posed andinovable in the bore- 2tofsaid Manifestly iii-thej'practiealuseof my im' provement when: the tubular memberf27 is,"

10's I I I have entered into'axdetailed description of the construction and relative I arrangement of the parts embraced in the present invention and preferred embodiment of 11 v in order to impart a fulhflclear and exact understanding of the said embodiment. do not desire, however, to be understood eonfining myself to the specific construction and relative arrangement of parts nasmuch as in the future practice of the invention various changes and modifications may be made such as tall withinthe scope ot my invention as defined in v appended claims Having desoribed iny invention, What I claim anddesire to secure by Letters-l at- 1. In a millingimaohine head, the combination of a support, a tubular rotary member mounted in said support, means for rotating said'member about its axis, a second tubular member keyed to and rotatable with. the first-named tubular member an movable endwise relat ve to said member, means for adjusting the second tubular member endwise, an angle governor pivoted in the iii-stemmed tubular member, means to adjustably fix said angle governor with respect,

to said member and at various angles of, in-- clination, and a tool holder: pivoted in the. second-named tubular member and havinb' a shanlr anda headon the shank and-enga d with and movable endwise of said governor.

mounted in said support, means for rotatmg said member about its axisga second member engaged with: the said rotary memher to turn therewith andmove endwise relatlve thereto-,' means for ad ust ngsa1d ;r'o-' tary and endw semovable member, an angle 1 governor mounted on the first-namedzrotary member to swing relative thereto, means to adjustably fix said angle governor w th re-V spect to the first-named rotary member, and

a tool holder mounted to roclr relative tothe second-named endwise movable tating said member about its axis, aseeond tubular member keyed to and rotatable with the first-namedtubular member and movable endwise relative to said member, means for adjustingbthe second tubular member endwise, an angle governor pivoted in the.

first-named tubular member, means to ad-' justablyfizr said angle governor witlrrespect to saidmember and atvariousfangles of inclination, and a tool holder pivoted in the 2. In a milling machine head,the eombi-- nation ofvasupport,v a rotary ,member and engaged with and adjustable lengthwiseot the angle governor. r

3. In a milling machine'head, tlie-eon bi-j nation of a" support,.a tubular rotarymem bermounted in said support, means for ro-f second named tubular member and having a shank and ahead on the shank and enwith and .movable endwise of saidggovernor; the first-named rotary member having aflared upper portion, and the angle i gov rnor b'eing provided Wlth a slot to reoeive the shank of the tool holder and with a bore to receive a head on said shank.

' i. in a millin machine head the combi nation of a s rpport,la tubular rotary member mounted in said. support, means for :ro-r' tating said memberaboutlits axis, a secondv tubular member keyed to and rotatable with the mutnamed tubularmeniber and mofv the seoond tubularmember an first-named tubular member, means to adr said angle governor with .re-

spect tosaid of inclination, and ato -o1 hOlClG IQ-PlVO tQECl III' the second-named tubular member,- a nd havn e I governor pivoted "in the,

. ise relative tosaid member, means.

iember and at various angles ing a shank and ahead on the shank and governor; the nrstnamed rotary member being equipped at ,its;;upper, end Withia frame, a screw bearing 1n said iram'e, fruits;

guided in the ifra ne, and movable. by said angle governor. I

o. Ina-anllin g screw. nuts an, disposed at opposite sides foftheig;

vith and Im'ovable 'endwise of said j d Clamping ,heads'earried iby'ithe machine head, the ioombi {d nation o1 a support, a tubular rotary meniher mounted in said support, means for-r0 ta ing said member about its axis, a second tubular member keyed to and rotatable with the first-named tubular. member and moV-;

able endwise relative to said; member; means-. 3

for adjusting the second tubular. member vendwise, an: angle governorpivoted 'in:the first named tubular member "means to ad-r I 7 usta lv said angle governor-; withfres ent to said member and at various angles ioo 0t inclination, and a-toolholder pivoted in the secondnamed tubular member-and haw.

a shanlr and a headon thelshanlrzand governor; the secondnamed rotary: and end-j flange of saidmember. I

In testimony whereof ture.

' HENRY .A. 'sTEWABT.,-, f;

engaged with and movable endwise -of said? i 

